Java tutorial
package org.sigmah.client.ui.view; /* * #%L * Sigmah * %% * Copyright (C) 2010 - 2016 URD * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/gpl-3.0.html>. * #L% */ import org.sigmah.client.i18n.I18N; import org.sigmah.client.ui.presenter.LoginPresenter; import org.sigmah.client.ui.res.ResourcesUtils; import org.sigmah.client.ui.view.base.AbstractView; import org.sigmah.client.ui.widget.Loadable; import org.sigmah.client.ui.widget.button.Button; import com.google.gwt.dom.client.Style.Position; import com.google.gwt.event.dom.client.HasClickHandlers; import com.google.gwt.user.client.ui.Anchor; import com.google.gwt.user.client.ui.FlexTable; import com.google.gwt.user.client.ui.FlowPanel; import com.google.gwt.user.client.ui.Grid; import com.google.gwt.user.client.ui.HasHorizontalAlignment; import com.google.gwt.user.client.ui.Image; import com.google.gwt.user.client.ui.ListBox; import com.google.gwt.user.client.ui.PasswordTextBox; import com.google.gwt.user.client.ui.SimplePanel; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.client.ui.ValueBoxBase; import com.google.inject.Singleton; /** * Login view. * * @author Denis Colliot (dcolliot@ideia.fr) */ @Singleton public class LoginView extends AbstractView implements LoginPresenter.View { // CSS. public static final String LOGIN_BG = "login-background"; public static final String LOGIN_BOX = "login-box"; public static final String LOGIN_BOX_LOGO = "login-box-logo"; public static final String LOGIN_BOX_FORM = "login-box-form"; public static final String LOGIN_BOX_FORM_LABEL = "login-box-form-label"; public static final String LOGIN_BOX_FORM_SEPARATOR = "login-box-form-separator"; private static final String LOGIN_BOX_FORM_FORGOTTEN = "login-box-form-forgotten"; // Images. public static final String LOGO_URL = ResourcesUtils.buildImageURL("login/login-logo.png"); private TextBox loginTextBox; private PasswordTextBox passwordTextBox; private ListBox languageListBox; private Anchor lostPasswordLink; private Button loginButton; /** * {@inheritDoc} */ @Override public void initialize() { final SimplePanel panel = new SimplePanel(); panel.setStyleName(LOGIN_BG); final Grid grid = new Grid(1, 2); grid.setStyleName(LOGIN_BOX); // Logo. grid.setWidget(0, 0, new Image(LOGO_URL)); // Form. final FlexTable form = new FlexTable(); form.setWidth("90%"); int y = 0; // Login field (email). form.setText(y, 0, I18N.CONSTANTS.loginLoginField()); form.getCellFormatter().setStyleName(y, 0, LOGIN_BOX_FORM_LABEL); loginTextBox = new TextBox(); loginTextBox.setWidth("100%"); form.setWidget(y, 1, loginTextBox); form.getFlexCellFormatter().setColSpan(y, 1, 2); y++; // Separator. for (int i = 0; i < 3; i++) { form.getCellFormatter().setStyleName(y, i, LOGIN_BOX_FORM_SEPARATOR); } y++; // Password field. form.setText(y, 0, I18N.CONSTANTS.loginPasswordField()); form.getCellFormatter().setStyleName(y, 0, LOGIN_BOX_FORM_LABEL); passwordTextBox = new PasswordTextBox(); passwordTextBox.setWidth("100%"); form.setWidget(y, 1, passwordTextBox); form.getFlexCellFormatter().setColSpan(y, 1, 2); y++; // Separator. for (int i = 0; i < 3; i++) { form.getCellFormatter().setStyleName(y, i, LOGIN_BOX_FORM_SEPARATOR); } y++; // Language field. form.setText(y, 0, I18N.CONSTANTS.loginLanguageField()); form.getCellFormatter().setStyleName(y, 0, LOGIN_BOX_FORM_LABEL); languageListBox = new ListBox(false); languageListBox.setWidth("100%"); form.setWidget(y, 1, languageListBox); form.getFlexCellFormatter().setColSpan(y, 1, 2); y++; // Separator. for (int i = 0; i < 3; i++) { form.getCellFormatter().setStyleName(y, i, LOGIN_BOX_FORM_SEPARATOR); } y++; // Password forgotten link. final FlowPanel bottomPanel = new FlowPanel(); bottomPanel.getElement().getStyle().setPosition(Position.RELATIVE); lostPasswordLink = new Anchor(I18N.CONSTANTS.loginPasswordForgotten()); lostPasswordLink.setStyleName(LOGIN_BOX_FORM_FORGOTTEN); bottomPanel.add(lostPasswordLink); form.setWidget(y, 0, bottomPanel); form.getFlexCellFormatter().setColSpan(y, 0, 2); // Login button. loginButton = new Button(I18N.CONSTANTS.loginConnectButton()); loginButton.setWidth("120px"); form.setWidget(y, 1, loginButton); form.getCellFormatter().setHorizontalAlignment(y, 1, HasHorizontalAlignment.ALIGN_RIGHT); y++; // Adding the form to the orange box. grid.getCellFormatter().setHorizontalAlignment(0, 1, HasHorizontalAlignment.ALIGN_CENTER); grid.setWidget(0, 1, form); // Styles. grid.getCellFormatter().setStyleName(0, 0, LOGIN_BOX_LOGO); grid.getCellFormatter().setStyleName(0, 1, LOGIN_BOX_FORM); panel.add(grid); add(panel); } /** * {@inheritDoc} */ @Override public boolean isFullPage() { return true; } /** * {@inheritDoc} */ @Override public Loadable[] getLoadables() { return new Loadable[] { loginButton }; } /** * {@inheritDoc} */ @Override public ListBox getLanguagesField() { return languageListBox; } /** * {@inheritDoc} */ @Override public ValueBoxBase<String> getLoginField() { return loginTextBox; } /** * {@inheritDoc} */ @Override public ValueBoxBase<String> getPasswordField() { return passwordTextBox; } /** * {@inheritDoc} */ @Override public HasClickHandlers getLostPasswordLink() { return lostPasswordLink; } /** * {@inheritDoc} */ @Override public Button getLoginButton() { return loginButton; } }